DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kumar, Macharla Arun | - |
dc.contributor.author | Bae, Sungjun | - |
dc.contributor.author | Hang, Seunghee | - |
dc.contributor.author | Chang, Yoonseok | - |
dc.contributor.author | Lee, Woojin | - |
dc.date.accessioned | 2018-06-15T05:31:25Z | - |
dc.date.available | 2018-06-15T05:31:25Z | - |
dc.date.created | 2017-10-10 | - |
dc.date.issued | 2017-10 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/50564 | - |
dc.description.abstract | We developed a novel stabilized nanoscale zerovalent iron (NZVI) particles with Ni using an electron conducting polymer, polyvinylpyrrolidone (PVP), to selectively dechlorinate trichloroethylene (TCE) to non-toxic intermediates. The size of the PVP stabilized NZVI-Ni ((PVP-NZVI-Ni), average diameter: similar to 20nm) is smaller than that of bare NZVI (50-80nm) due to the prevention of agglomeration of the resultant iron particles by PVP. PVP-NZVI-Ni showed a complete removal of TCE in 1 h with superior dechlorination kinetics (k(obs) =5.702 h(-1)) and ethane selectivity (98%), while NZVI-Ni showed 5 times slower dechlorination kinetics (1.218 h(-1)). Other PVP-NZVI-metals (i.e., Cu, Sn, Co, and Mn) also enhanced the TCE dechlorination, but they were much slower (k(obs) =0.024-0.411 h(-1)) than that of PVP-NZVI-Ni. In column test, PVP-NZVI-Ni exhibited better mobility (95% of PVP-NZVI-Ni recovery in the eluent) than NZVI-Ni (1%). In addition, PVP-NZVI-Ni reductively transform TCE to ethane even under 10 cycles of repeated TCE dechlorination treatment. (C) 2017 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.relation.isPartOf | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.subject | BIMETALLIC NANOPARTICLES | - |
dc.subject | NITRATE REDUCTION | - |
dc.subject | CATALYST | - |
dc.subject | HYDRODECHLORINATION | - |
dc.subject | HYDROCARBONS | - |
dc.subject | DEGRADATION | - |
dc.subject | REACTIVITY | - |
dc.subject | WATER | - |
dc.subject | SIZE | - |
dc.subject | FE | - |
dc.title | Reductive dechlorination of trichloroethylene by polyvinylpyrrolidone stabilized nanoscale zerovalent iron particles with Ni | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.jhazmat.2017.07.030 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | JOURNAL OF HAZARDOUS MATERIALS, v.340, pp.399 - 406 | - |
dc.identifier.wosid | 000409149800041 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 406 | - |
dc.citation.startPage | 399 | - |
dc.citation.title | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.citation.volume | 340 | - |
dc.contributor.affiliatedAuthor | Chang, Yoonseok | - |
dc.contributor.affiliatedAuthor | Lee, Woojin | - |
dc.identifier.scopusid | 2-s2.0-85025073807 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 6 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | BIMETALLIC NANOPARTICLES | - |
dc.subject.keywordPlus | NITRATE REDUCTION | - |
dc.subject.keywordPlus | CATALYST | - |
dc.subject.keywordPlus | HYDRODECHLORINATION | - |
dc.subject.keywordPlus | HYDROCARBONS | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | REACTIVITY | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | SIZE | - |
dc.subject.keywordPlus | FE | - |
dc.subject.keywordAuthor | Reductive dechlorination | - |
dc.subject.keywordAuthor | Nano zerovalent iron (nZVl) | - |
dc.subject.keywordAuthor | Polyvinylpyrrolidone | - |
dc.subject.keywordAuthor | Trichloroethylene | - |
dc.subject.keywordAuthor | Bimetallic nZVI-Ni | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
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